From the study of crime in sociology or of human security in development studies, to concerns with environmental catastrophe in climate studies and trans-national terrorism in international relations, the growth of security as a matter of academic concern is deemed a sign of our times. But what is security from a cross-cultural perspective? What does it look like from the point of view, not only of those people deemed to be under threat, but also from that of those who are deemed to pose it? Focusing on the multiple and mutually imbricated notions of, and concerns with, time involved in security practices across the globe, this volume brings together a selected group of established and upcoming scholars who conduct ethnographic research in a broad ambit of securitized contexts from the experience of Palestinian detainees in Israel or forms of popular violence in Bolivia, to efforts to normalise social relations in post-conflict Yugoslavia and ways of imagining threat in contemporary protest movements in Europe to chart the temporalities of securitization in a multi-polar world.